Quickflash Joist Flashing - Box of 30

$97.50

    Cantilevered Quickflash Joist Flashings are one-piece weatherproof polypropylene saddle flashings for decks, porches, entrance roofs, and more!

    Available for both 2x and 4x Dimensional Lumber - Cut to fit x4", x6", x8", x10" or x12"

    Actual interior width is slightly more than 1.5" for X2 or 3.5" for X4, to fit modern dimensional lumber.

    Quickflash Joist Flashings have many benefits:

    • Reduce liability
    • Shed water away from intersection
    • Help to prevent air leakage
    • Economical — save time and labor
    • Non-corrosive — non-conductive
    • Only flashing that is specifically designed for wall penetrations
    • Self sealing around fasteners
    • Easy to integrate with building envelope and works with all cladding systems
    • PLUS A 10 YEAR LIMITED WARRANTY!!!
     
Width: 2" JF2X
  • ARBOR DAY
  • Best Small Business Award
  • Customer Reviews
Vendors: Quickflash SKU: JF2X
  • Easy Returns

    Return with 30 days of purchase date
  • Technical Support

    Available 9am - 5pm EST Mon-Fri
  • Customer Support

    Available 9am - 5pm EST, Mon-Fri
  • Fast Shipping

    Ships within 48 hours if in stock
  • 5
    387 (88%)
  • 4
    34 (7.7%)
  • 3
    12 (2.7%)
  • 2
    2 (0.5%)
  • 1
    5 (1.1%)
96% of customers rate this company 4- or 5-stars
Newest to Oldest
  • Favorite Reviews
  • Highest to Lowest
  • Newest to Oldest
All Ratings
  • All Ratings
  • 5 ★ Reviews
  • 4 ★ Reviews
  • 3 ★ Reviews
  • 2 ★ Reviews
  • 1 ★ Reviews
Linda P. Verified Customer
08-12-25

Great customer service and quick shipping!

Max Verified Customer
08-12-25

Fast, efficient delivery of these still difficult to find products. Excellent merchant. And, boy, am I glad you're there.

Patricia F. Verified Customer
08-10-25

Loved the bigger samples of Marmoleum, helped me decide to order. Quick turnaround on the quote and ease of ordering were plusses. My flooring was delivered, as scheduled, on carefully wrapped pallet, delivered by a very polite and helpful delivery person. Can't wait to have my new floor installed!

Gayle S. Verified Customer
08-04-25

Received the product and just used it . So far so good .

Suzanne K. Verified Customer
08-01-25

received my order, thank you.

Al Verified Customer
07-27-25

Great service!

Jared F. Verified Customer
07-24-25

Not as described. They put bubble wrap radiant barrier around some rockwool on the top. Not as described. The images are different than what I was shipped.

Reply from Eco-BuildingProducts.Com

Jared, Thanks for your feedback and review. The product page contains a wealth of information, including a relatively well-written description, dimensions, and images. I agree that our product description doesn't resemble your description. The recessed light cover is a cone-like cylinder measuring 14" in diameter at the base, 12" in diameter at the top, and 11.5" in height, made with TempSheild's Class A/Class1 Single Double Bubble Foil wrapped with a rockwool insulation top. The product page features two images, both of which accurately represent what is boxed and shipped. If you feel misled and unsatisfied with your purchase and the item you received, you are welcome to return it for a full refund. Let us know. Thanks

Craig B. Verified Customer
07-23-25

Easy order process; quick delivery!

SA Verified Customer
07-15-25

easy.

AM Verified Customer
07-13-25

Product still not arrived

slide 2 of 50

    Cantilevered Quickflash Joist Flashings are one-piece weatherproof polypropylene saddle flashings for decks, porches, entrance roofs, and more!

    Available for both 2x and 4x Dimensional Lumber - Cut to fit x4", x6", x8", x10" or x12"

    Actual interior width is slightly more than 1.5" for X2 or 3.5" for X4, to fit modern dimensional lumber.

    Quickflash Joist Flashings have many benefits:

    • Reduce liability
    • Shed water away from intersection
    • Help to prevent air leakage
    • Economical — save time and labor
    • Non-corrosive — non-conductive
    • Only flashing that is specifically designed for wall penetrations
    • Self sealing around fasteners
    • Easy to integrate with building envelope and works with all cladding systems
    • PLUS A 10 YEAR LIMITED WARRANTY!!!
     

Quickflash Joist Flashing

The Cantilevered Quickflash Joist Flashing JF X2 fits 2" X 6" up to 2 X 12" dimensional lumber.

The Cantilevered Quickflash Joist Flashing JF X4 fits 4" X 6" up to 4 X 12" dimensional lumber.

One piece weatherproof polypropylene saddle flashing for: Decks, pergolas, entrance roofs, etcetera.

Actual interior width is slightly more than 1.5" for X2 or 3.5" for X4, to fit modern dimensional lumber.

Sold in boxes of 30.

Quickflash Joist Flashing

Quickflash also makes Electrical Flashing Panels and Plumbing Flashing Panels!

QuickFlash Joist Flashing Specifications

This Quickflash Joist Flashing JF X2 is 13 1/2 " x 4 1/2" x 2".

Cut to fit 2" X 6" up to 2 X 12" dimension lumber.

This Quickflash Joist Flashing JF X4 is 13 1/2 " x 6 5/8" x 2"

Cut to fit 4" X 6" up to 4 X 12" dimension lumber.

Actual interior width is slightly more than 1.5" for X2 or 3.5" for X4, to fit modern dimensional lumber.

  • Reduces liability
  • Sheds water away from intersection
  • Helps to prevent air leakage
  • Economical — saves time and labor
  • Non-corrosive — non-conductive
  • Only flashing that is specifically designed for wall penetrations
  • Self sealing around fasteners
  • Easy to integrate with building envelope and works with all cladding systems
  • PLUS A 10 YEAR LIMITED WARRANTY!!!

All Quickflash® Products are made in the USA Quickflash® Weatherproofing Products, Inc. products are covered by one or more of the following United States Letters Patent: 6,395,984; 6,543,186; 6,596,938; 6,649,835; 7,305,801; 7,389,616; 7,730,681; 7,640,699; 6,860,070 and other patents pending

  • Weight 20 lbs
  • Dimensions 1.3 × 1 × 1 in
  • Width 2" JF2X, 4" JF4X

Customer Reviews

Based on 1 review
0%
(0)
100%
(1)
0%
(0)
0%
(0)
0%
(0)
A
Anonymous

Would be great if the joist flashings had flange for the bottom of the joist.